‘ery oy 
CLASS VII. 
RINGED WORMS (ANWULATA). 
Linn avs placed (vid. p. 80) all animals that are destitute of a 
proper internal skeleton in two classes, that of Insects and that of 
Worms. In reviewing the principal modifications which subsequent 
writers have introduced into the general classification of the animal 
kingdom, we find that they relate chiefly to the animals placed by 
Linna&vs in the latter class. All those classes which we have 
hitherto treated of have been formed by separation from the Lin- 
NZAN class of worms; all the animals which we shall describe in 
the sequel as Molluscs formed collectively a portion of the same 
ereat division. Amongst creatures so numerous and of such variety 
of form, there are some which in type, or plan of organisation, 
approximate towards insects; they are, like insects, articulate 
animals, but differ from them by the absence of articulate feet. “As 
early as the end of the last century CUVIER made of these a distinct 
division of the animal kingdom under the name of Worms, and, at 
1 Compare on this class :— 
O. F. Muriier, Vermium terrestrium et fluriatilium seu Animalium infusoriorum, 
helminthicorum et testaceorum, non marinorum, succincta Historia, Haunie et Lipsie, 
1773, 1774, 11 Volumina 4to. (This work describes the Worms of Linnzxus, that is, 
the invertebrate inarticulate animals and the ringed Worms.) 
O. F. MvuELiER, Naturgeschichte einiger Wurmarten des siissen und salzigen Wassers. 
mit Kupf., Kopenhagen, 1771, 4t0. (new edit. 1800). Descriptions and observations 
referring chiefly to the genera Nais, Nereis and Aphrodite. 
J.C. Savieny, Systeme des Annelides, Description de lV Egypte, Tom. xxvt. Paris, 
1826, (pp. 325—472). 
AUDOUIN et MILNE Epwarps, Classification des Annelides et Description de celles, 
qui habitent les cotes de la France. Annales des Sc. natur. Tom. Xxvit. 1832, pp. 337— 
447, Tom. XXvVIl. 1833, pp. 187—247, XXIX. pp. 195—269, pp. 388—412, XXX. 
pp- 411—425. 
MILNE Epwarps, Annelida in Topn’s Cyclopedia 1. 1835, pp. 164—173. 
A. S. OERSTED, Grenland’s Annulata dorsibranchiata in Kongl. Danske videnska- 
bernes Selskabs Naturvidenskabelige og mathematiske Afhandlinger X. 1813, pp. 153— 
216, with figures. 
_ A. E. Grube, Die Familien der Anneliden, Ein Systematisches Versuch. Berlin, 
1851. 
